/Engine/Source/Runtime/CoreUObject/Public/UObject/LinkerLoad.h
WARNING!!! This function is potentially very dangerous! It should only be used at very specific times, and in very specific cases. If you're unsure, DON'T TRY TO USE IT!!!
static void PRIVATE_PatchNewObjectIntoExport ( [UObject](API\Runtime\CoreUObject\UObject\UObject) * OldObject, [UObject](API\Runtime\CoreUObject\UObject\UObject) * NewObject )